Mercedes Benz C300 electrical problems
207 complaint narratives mention electrical terms.
Key facts
1,248 owner complaints analyzed
8 distinct recall campaigns
74,200 mi median reported failure mileage
Scope: 2008 to 2009 model years. Data snapshot: . 763 complaints include usable failure mileage.
Electrical and battery issues evidence
207 of 1,248 complaints match this topic (16.6%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 10333976 · 2010-05-31 (May 31, 2010)
TWO SEPARATE INSTANCES OF COMMANDED ACCELERATION WITH 2008 MERCEDES C300. PURCHASED THE CAR FROM A PRIVATE USED CAR DEALER IN SEPTEMBER 2009 WITH 10,500 MILES. ON NOVEMBER 1, 2009 I EXPERIENCED FIRST INSTANCE OF UNCOMMANDED ACCELERATION WHILE SLOWING TO A STOP IN A DRIVEWAY. ENGINE SUDDENLY ACCELERATED TO A HIGH RATE AND STRUCK A PARKED TRUCK IMMEDIATELY IN FRONT OF CAR. SHIFTED INTO REVERSE AND CAR SPED AT MAXIMUM RPM ACROSS LAWNS AND STREET UNTIL FINALLY RETURNING TO NORMAL. AT NO TIME WERE THE BRAKES ABLE TO HAVE ANY EFFECT ON SLOWING MY …
Owner-reported narrative. 17,330 miles reported. Look up ODI 10333976 at NHTSA ↗
Owner report 10511033 · 2013-05-07 (May 7, 2013)
I RECEIVED MESSAGES ON MY DASH STATING TO CHECK REAR LEFT TURN SIGNAL AND REAR LEFT TAIL/BRAKE LAMPS. UPON PULLING OUT THE REAR LEFT (DRIVER'S SIDE) TAIL LIGHT ASSEMBLY, WHICH HOLDS ALL THE BULBS, I NOTICED THAT THE TAIL LIGHTS WOULD FLASH WHEN I JIGGLED THE WIRES BUT NOT STAY ON. I PULLED THE HARNESS PLUG FROM THE SOCKET ON THE ASSEMBLY HOLDING THE BULBS AND NOTICED A BLACKENED BURNT SPOT AND MELTED PLASTIC ON THE PLUG ITSELF, AND ALSO A BURNT SPOT INSIDE THE PLUG SOCKET WHICH ALMOST BURNED THROUGH THE OTHER SIDE OF THE TAIL LIGHT ASSEMBLY U…
Owner-reported narrative. 86,949 miles reported. Look up ODI 10511033 at NHTSA ↗
Owner report 10519714 · 2013-06-13 (June 13, 2013)
AFTER TAKING MY CARE TO THE DEALER, I HAD A ERROR MESSAGE ON MY DISPLAY STATING THAT MY RIGHT REAR TAIL LIGHT IS OUT. THEN A MESSAGE STATING MY RIGHT LOW BEAM IS OUT. I REPLACED ALL THE BULBS..... FIVE DAYS LATER I GET ANOTHER RIGHT REAR TAIL LIGHT IS OUT. TWO WEEKS LATER MY RIGHT LOW BEAM IS OUT AGAIN. SEEMS THERE IS A WIRING SHORT THAT KEEPS BURNING OUT THE LOW BEAM AND TAIL LIGHT. OH BY THE WAY TAIL LIGHT/BRAKE LIGHTS WORK. STILL HAVE ERROR MESSAGE. *TR
Owner-reported narrative. 56,000 miles reported. Look up ODI 10519714 at NHTSA ↗
Owner report 10523816 · 2013-07-08 (July 8, 2013)
THE PASSENGER SIDE REAR TAIL LIGHT HARNESS CAUGHT FIRE AND MELTED. THERE ARE COUNTLESS COMPLAINTS AND REPORTS ON THIS ISSUE, BUT MERCEDES REFUSES TO CORRECT THE PROBLEM OR DO A RECALL. MOST INCIDENTS OCCUR BETWEEN 50,000 AND 60,000 MILES AND IS NOT COVERED BY WARRANTY. YOU CAN GOOGLE THIS ISSUE AND SEE THE WIDE SPREAD COMPLAINTS ON THE MELTING WIRING HARNESS. THERE ARE ALSO SEVERAL DISCUSSIONS ON MB FORUM. BELOW IS ANOTHER WEBSITE WITH SEVERAL COMPLAINTS OF MELTED TAIL LIGHT WIRING AND NON-WORKING TAIL/BRAKE AND TURN SIGNALS. I'VE CONTACTE…
Owner-reported narrative. 49,000 miles reported. Look up ODI 10523816 at NHTSA ↗
Owner report 10524819 · 2013-07-15 (July 15, 2013)
RIGHT REAR TAIL LIGHT DASH MONITOR INDICATED A PROBLEM. FOUND THE RIGHT REAR TAIL LIGHT CIRCUIT BOARD GROUND WIRE BURNED AND SMOKING. PLASTIC CONNECTOR AND LIGHTING CIRCUIT BOARD MELTING. APPEARS THAT THE ELECTRICAL CURRENT DRAW IS GREATER THAN THE GROUND WIRE CAN HANDLE. TAKEN TO DEALER FOR FIX. NO RESPONSE AS YET, BUT BASED ON OTHER ONLINE REPORTS, IT APPEARS UNLIKELY THEY WILL SUPPORT A WARRANTY CLAIM FIX. *TR
Owner-reported narrative. 36,000 miles reported. Look up ODI 10524819 at NHTSA ↗